"Paul Tomblin" wrote in message
...

It says "when an instrument letdown...is necessary" that you shall use an
instrument letdown. Isn't that sort of circular? It doesn't actually say
when an instrument letdown is necessary.


An instrument letdown would be necessary whenever there's no way to descend
without one. Already at the MIA and still in IMC? Visual, contact, or
radar approach not an option? Looks like an instrument letdown is
necessary.